You could be standing at the site of one of D.C.'s most fatal tragedies and not even know it.

Rumor has it the uncarved lump behind the three famous suffragists is reserved for the first woman president.

Largest Roman Catholic church in North America.

The most decorated dog of World War I is preserved in the Smithsonian.

A lovely aquatic park built by a one-armed Civil War veteran who made a fortune from lotuses.

A historic neighborhood church is reborn as a psychedelic arts collective.

This peaceful garden is hidden on the grounds of a spiritual organization founded by a pioneer yogi.

Hidden in one of the skyscrapers on Bunker Hill, this museum features an 1895 stagecoach and peers into California’s gold-lined history.

Canada's largest dinosaur skeleton was hidden away in storage for more than 40 years.

This half-ton piece of the Alps sits at the base of the CN Tower.

This colorful creation wasn't always a welcome part of Toronto's Moccasin Trail Park.

A unique collection of Science Fiction, Fantasy, and everything in-between.

An alternate history park where the Union Army loses the war... to dinosaurs.

One of the oldest and most significant collections of Ancient Egyptian archeology outside of Egypt.

This fairytale house on the shore of a Chilean Lake oozes an eclectic mix of Chilote and German Cultural heritage.

A moving tribute to a leader of the American abolitionist movement.

Once strictly off-limits, this lower level housing curious and priceless vehicles of the Petersen Automotive Museum is now open to the public.

A uniquely robust and historic look at Mexico's omnipresent dance with Death.

An elaborate Mayan city shrouded in alien conspiracy revealed the tomb of Pacal the Great.

Underwater art project will double as a massive artificial coral reef to help regenerate the damaged ecosystem.

An Aztec temple, the largest man-made pyramid in the world, sits buried in earth with a Spanish church set on top.

A magical sinkhole on the Yucatán Peninsula is adorned with mini waterfalls and hanging vines.

Part bookstore, part café, and part forest.

Hidden for more than a century, the grave of the Conquistador remains forgotten behind these church walls.