I visited a Halloween festival with 7,000 jack-o'-lanterns at a 17th-century mansion. See the jaw-dropping displays.

The Great Jack O'Lantern Blaze is produced by Historic Hudson Valley, a nonprofit organization that operates and interprets national historic landmarks in Upstate New York such as the Rockefellers' Kykuit mansion. Proceeds benefit the nonprofit's preservation work and educational programming.

Prices range from $34 for a standard ticket to $77 for admission to the Gourd and Goblet Tavern, a dining experience inside the manor's historic ferry house. Blaze also offers a $129 "flex" ticket that includes a free drink and snack and is valid any day of the event, even when it's otherwise sold out.

Tickets can be purchased on Historic Hudson Valley's website, but be warned: They sell out quickly. Due to high demand, Historic Hudson Valley provided Business Insider with a timed press ticket.

The organic pumpkins are grown at Wallkill View Farm in New Paltz, New York. Michael Natiello, creative director of The Great Jack O'Lantern Blaze, told Business Insider that his team carves over 1,000 pumpkins each week to replace the ones that rot.

Using some foam pumpkins doesn't just help with the longevity of the displays; it also preserves the estate.

"Because we're on a historical site where there are historical buildings, we don't want to introduce more organic material that's going to mold or attract rodents," Natiello said.

When the first Blaze festival was held 20 years ago, the spider web consisted of pumpkins laid flat on the ground in a web-like pattern. Today, it's a 24-foot display mounted on professional theater-grade hardware.

"We went from a bunch of history buffs to a pretty high-end production company in 20 years," Natiello said.

Rob Schweitzer, vice president of communications at Historic Hudson Valley, told Business Insider that the organization expects over 200,000 people to attend this year, including visitors from all over the world.

"In the 1700s, the Kraken was believed to be real and a threat to shipping," Natiello said. "The Van Cortlandts were from the Dutch West India Trading Company. They were merchants. They traded with China. They literally had docks right on the site where ships came. And guess where we're putting the Kraken? In that spot."

The actual bridge connects Tarrytown and Nyack across the Hudson River.

The gallery wall included pumpkin versions of The Son of Man, The Scream, American Gothic, and the Mona Lisa.

A sign explained the jack-o'-lantern's origin in Irish folklore from the tale of "Stingy Jack" who carved a turnip and lit it with a candle as he wandered between heaven and hell.

The windmill was surrounded by pumpkins carved with tulips and lit up in different colors.

Fog billowed out of a pumpkin blacksmith shop, also known as a "jacksmith shop."

The pumpkin planetarium seemed to be the most popular spot to stop for photos.

Natiello named the Road to Infinity as his favorite part of the festival.

The ferry house, dating back to around 1730, provided overnight accommodations to travelers along the Albany Post Road.

"As you're walking through Blaze, you're walking on what was the Albany Post Road, which was the main road connecting Albany and New York City," Schweitzer said. "It's essentially an extension of Broadway that ran right through the property. That took a little longer back then than it does today. So when folks were on that journey, this was a good stopping point to get some food, get some rest, and continue on the way."

A man in 18th-century period dress checked my ID and crossed my name off a list before admitting me to the Gourd and Goblet.

I ordered a glass of apple cider, which came in a Gourd and Goblet Tavern cup.

The table also had a bar snack mix to nibble on.

I hadn't realized just how many courses Gourd and Goblet offered.

Tickets with admission to the tavern cost an extra $43. To put things in perspective, a souvenir cup of apple cider alone costs $10 at the Blaze concession stand, so the refreshments help offset the price.

It's a nice spot to bring a date or sit with a group of friends, especially as nights get colder, but I think the event would be just as enjoyable for those who skip it.

At the foot of the jack-o'-lantern Statue of Liberty, pumpkins were carved with American flags and lit up in red, white, and blue.

Everyone around me was delighted to discover that the display included a Pizza Rat jack-o'lantern, a nod to the viral 2015 video of a rat dragging a slice of pizza down the steps of the New York City subway.

The manor itself is temporarily closed for restoration work, but its balcony was lined with smiling jack-o'-lanterns.

Pierre Van Cortlandt fought in the Revolutionary War and served as New York's first Lieutenant Gov. from 1777 to 1795. His son, Philip Van Cortlandt, served as a New York representative in Congress from 1793 to 1809.

I'm not usually one for spooky Halloween outings (though I have visited some purportedly haunted places in the name of journalism), but to me, The Great Jack O'Lantern Blaze felt more like an art show than a haunted house.