Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Construction of Barcelona’s iconic (but controversial) church was finally completed in 2026—a century after the death of its architect.

This otherworldly church spire reaches up toward the heavens.

A Roman-style column in Oregon hides a spiral staircase inside.

The world's last remaining store of its kind.

The sun acts as a key that only fits this giant keyhole twice a year.

It would be a crime to miss it.

This historic graveyard was partially paved over to create a streetcar line.

Swarms of butterflies cannot compare to the awe inspired by the publicly-funded nakedness once displayed in this sunken garden.

One of the largest trees of its kind in California.

This unique structure in suburban Austin is made up entirely of other people's castaways, and constantly changing.

This rare triple-jurisdiction drawbridge passes through Virginia, Maryland, and Washington, D.C.

The tallest The Church of Jesus Christ of Latter-day Saints temple in the world soars above the Beltway.

The final resting place of an unidentified revolutionary soldier sits behind a Virginia church.

This colonial tavern played host to George Washington, Thomas Jefferson, and other famous early Americans.

The narrowest house in America is seven feet of pure spite.

FDR's Art Deco hospital tower was hopelessly inefficient.

Once home to seven different roller coasters, Glen Echo has undergone many transformations since its founding in 1891.

This isn't your average roadway—it's actually a National Park and a transportation pioneer.

The privately owned cemetery that holds room for Washington's finest when they step down from life.

One of the dwarven trees dates back to 1625 and survived the Hiroshima bombing.

The romance of early commercial flight still fills this Art Deco destination.

Rumor has it the hot dog stand was targeted by two Russian nuclear missiles.