Where can one purchase lace underwear?

Lace underwear can be purchased from a variety of lingerie stores depending on your location. Any department store such as Debenhams in the UK and Macys in the US will have a lingerie department where one would be able to purchase lace underwear. Alternatively, websites such as eBay, Amazon, or specialist sites such as La Senza, would also be places where one could buy such underwear.