Purple mountains majesty, glassy lakes -- we know all the usual sites we're likely to see in the national parks. But if your taste run more to the strange, they keep tons of scenic strangeness about 240 miles southeast of Salt Lake City in Arches National Park. This park contains more than 2,000 natural arches-the largest concentration in the world. The extraordinary features of the park create unbelievably dramatic landscapes that look more sculpted by giant mythological beings than the processes of time.